<!DOCTYPE html>
<html>
<head>
	<title>错误页</title>
</head>
<body>
你跑到我的错误页来干嘛?
<script type="text/javascript">
	for(var i=0;i<5;i++){
		debugger;
		console.log(i)
	}
	console.log(i)
</script>
</body>
</html>